| 摘要 |
<p>1,103,122. Tubular heat exchangers. SCHMIDT'SCHE HEISSDAMPF G.m.b.H. 15 April, 1965 [16 April, 1964], No. 16320/65. Heading F4S. A tubular heat exchanger in which hot flue, cracking or other gases are cooled by a coolant such as water, comprises a plurality of straight concentric tube elements, in each of which the outer tube 7 carries the coolant between annular chambers 4 and 5 connected by pipes 10 and 11 to coolant supply and discharge mains 9, 12 respectively. Each set of the chambers 4, 5 is arranged in a general frusto-conical stepped formation and sealed together by metal rings, whilst the inner tube 6, which passes through the chambers 4 and 5, carries the gas to be cooled between tapered headers 2 and 3. At the gas discharge end the gas tubes 6 extend a substantial distance beyond the annular coolant chambers 5 and pass through and are attached to a common securing plate 22 spaced from the coolant chambers 5. The securing plate 22 and the coolant chambers 5 form the top and bottom ends respectively of an enclosure 24 around the extended gas tubes 6, through which a liquid requiring to be heated may flow in heat-conducting relation with the gas tubes between an inlet 25 and an outlet 26.</p> |
